CN215934279U - Dynamic sealing device for gas insulation - Google Patents

Dynamic sealing device for gas insulation Download PDF

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Publication number
CN215934279U
CN215934279U CN202121610606.9U CN202121610606U CN215934279U CN 215934279 U CN215934279 U CN 215934279U CN 202121610606 U CN202121610606 U CN 202121610606U CN 215934279 U CN215934279 U CN 215934279U
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CN
China
Prior art keywords
sealing
guide rod
cavity
shaft sleeve
circuit breaker
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202121610606.9U
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Chinese (zh)
Inventor
王安心
徐文
王陈伟
李泽正
彭雪昆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murge Electric Co ltd
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Murge Electric Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Murge Electric Co ltd filed Critical Murge Electric Co ltd
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Publication of CN215934279U publication Critical patent/CN215934279U/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H33/6661—Combination with other type of switch, e.g. for load break switches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/045—Details of casing, e.g. gas tightness

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Transmission Devices (AREA)
  • Gas-Insulated Switchgears (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

The utility model discloses a dynamic sealing device for gas insulation, which comprises a dynamic sealing shaft sleeve, a shaft sleeve cover plate and a fine adjustment mechanism, wherein the dynamic sealing shaft sleeve comprises a sealing assembly and a guide assembly, the sealing assembly is used for sealing a guide rod of a vacuum circuit breaker, the guide assembly is used for guiding the guide rod, and the fine adjustment mechanism adjusts the position of the guide rod.

Description

Dynamic sealing device for gas insulation
Technical Field
The utility model belongs to the technical field of switch cabinets, and relates to a dynamic sealing device for gas insulation.
Background
The pole and the operating device of the vacuum circuit breaker in the gas insulated switchgear are arranged in different chambers in the switchgear, which puts higher requirements on the sealing performance to ensure the safety of operators and the switchgear.
Disclosure of Invention
The utility model provides a dynamic sealing device for gas insulation, which overcomes the defects of the prior art.
In order to achieve the purpose, the utility model adopts the following technical scheme: a dynamic sealing device for gas insulation is characterized in that: the guide rod sealing device comprises a dynamic sealing shaft sleeve, a shaft sleeve cover plate and a fine adjustment mechanism, wherein the dynamic sealing shaft sleeve comprises a sealing assembly and a guide assembly, the sealing assembly is used for sealing a guide rod of the vacuum circuit breaker, the guide assembly is used for guiding the guide rod, and the fine adjustment mechanism adjusts the position of the guide rod.
Further, the method comprises the following steps of; the shaft sleeve cover plate is fixedly connected with the dynamic seal shaft sleeve, the shaft sleeve cover plate is fixedly provided with a through cavity, the dynamic seal shaft sleeve is composed of a first shaft sleeve and a second shaft sleeve, a first cavity is fixedly arranged in the first shaft sleeve, a second cavity is fixedly arranged in the second shaft sleeve, and the first cavity and the second cavity are coaxially arranged.
Further, the method comprises the following steps of; install at the circuit breaker mounting panel, the mounting hole has set firmly on the circuit breaker mounting panel, and the mounting hole is joined in marriage with the second shaft cover, and the mounting hole is inserted to the second shaft cover, and first axle sleeve terminal surface offsets with the circuit breaker mounting panel, and the circuit breaker mounting panel passes through fastening screw fixed connection with first axle sleeve.
Further, the method comprises the following steps of; the sealing assembly comprises a first sealing ring, a sealing sleeve, a first sealing piece and a second sealing piece, the first sealing ring is used for sealing between the dynamic sealing device and the circuit breaker mounting plate, and the sealing sleeve, the first sealing piece and the second sealing piece are used for sealing the guide rod which does reciprocating motion.
Further, the method comprises the following steps of; the end face of the first shaft sleeve is fixedly provided with a sealing cavity, and the first sealing ring is arranged in the sealing cavity.
Further, the method comprises the following steps of; the guide rod runs through in proper order and runs through chamber, first cavity and second cavity, and the input of guide rod is located the circuit breaker box, and the output of guide rod is located the circuit breaker utmost point post, and the seal cover is installed in first cavity, and the seal cover is established at the guide rod surface, and the seal cover inboard has set firmly the first cavity of indent type, and first sealing member is installed at first cavity, and first sealing member cover is established at the guide rod surface, and the seal cover outside has set firmly the second cavity of indent type, and the second sealing member is installed at the second cavity.
Further, the method comprises the following steps of; the guide assembly comprises a circuit breaker guide sleeve, the circuit breaker guide sleeve is fixedly arranged in the second cavity, the circuit breaker guide sleeve is sleeved on the guide rod, and the circuit breaker guide sleeve guides the movement of the guide rod.
Further, the method comprises the following steps of; the fine adjustment mechanism comprises a cover plate mounting hole fixedly arranged on the cover plate of the shaft sleeve and a shaft sleeve mounting hole fixedly arranged on the first shaft sleeve, the cover plate mounting hole is larger than the shaft sleeve mounting hole, the diameter of the penetrating cavity is larger than that of the guide rod, a gap exists between the cover plate mounting hole and the guide rod, and the offset of the guide rod is adjusted by adjusting the position of the guide rod in the penetrating cavity.
Further, the method comprises the following steps of; the cover plate mounting holes correspond to the shaft sleeve mounting holes one to one.
In conclusion, the utility model has the advantages that:
1. the utility model ensures that the guide rod keeps a sealing state in the linear reciprocating motion process by optimizing the structure of the dynamic sealing device, and the structure is simpler.
2. The utility model seals the dynamic sealing device and the breaker mounting plate through the first sealing ring, seals the guide rod which reciprocates through the sealing sleeve, the first sealing element and the second sealing element, and ensures that the guide rod is in a real-time sealing state in the moving process of the guide rod by designing double sealing in the moving direction of the guide rod.
3. The guide sleeve of the circuit breaker is designed to guide the movement of the guide rod, so that the guide rod is prevented from deviating in the movement process.
4. The utility model adjusts the position of the guide rod through the fine adjustment mechanism, and adjusts the offset of the guide rod, thereby ensuring that the guide rod keeps a sealing state and transmission efficiency after being used for a long time.
Drawings
Fig. 1 is a front view of a dynamic seal device of the present invention.
Fig. 2 is a rear view of the dynamic sealing device of the present invention.
Fig. 3 is a schematic sectional view of C-C in fig. 1.
Fig. 4 is an enlarged schematic view of D in fig. 3.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
All directional indicators (such as up, down, left, right, front, rear, lateral, longitudinal … …) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the movement, etc. in a particular posture, and if the particular posture is changed, the directional indicator is changed accordingly.
The first embodiment is as follows:
as shown in fig. 1 to 4, a dynamic sealing apparatus for gas insulation includes a dynamic sealing bushing 461, a bushing cover 462 and a fine adjustment mechanism, wherein the dynamic sealing bushing 461 includes a sealing assembly and a guiding assembly, the sealing assembly is used for sealing a guide rod 411 of a vacuum circuit breaker, the guiding assembly is used for guiding the guide rod 411, and the fine adjustment mechanism adjusts a position of the guide rod 411.
The shaft sleeve cover plate 462 is fixedly connected with a dynamic seal shaft sleeve 461, a penetrating cavity 4622 is fixedly arranged on the shaft sleeve cover plate 462, the dynamic seal shaft sleeve 461 is composed of a first shaft sleeve 4611 and a second shaft sleeve 4612, the first shaft sleeve 4611 and the second shaft sleeve 4612 are cylindrical structures, a first cavity 46111 is fixedly arranged in the first shaft sleeve 4611, a second cavity 46121 is fixedly arranged in the second shaft sleeve 4612, the penetrating cavity 4622, the first cavity 46111 and the second cavity 46121 are coaxially arranged, the dynamic seal device is arranged on a circuit breaker mounting plate 451, a mounting hole 4511 is fixedly arranged on the circuit breaker mounting plate 451, the size of the mounting hole 4511 is matched with that of the second shaft sleeve 4612, when the dynamic seal shaft sleeve 461 is mounted, the second shaft sleeve 4612 is inserted into the mounting hole 4511, the end face of the first shaft sleeve 4611 abuts against the circuit breaker mounting plate 451, and the circuit breaker mounting plate 451 is fixedly connected with the first shaft sleeve 4611 through fastening screws 467, so that the dynamic seal device 46 is fixedly mounted on the circuit breaker mounting plate 451.
The sealing assembly includes a first sealing ring 463, a sealing sleeve 464, a first sealing member 4651 and a second sealing member 4652, the first sealing ring 463 is used for sealing the movable sealing device 46 and the breaker mounting plate 451, and the sealing sleeve 464, the first sealing member 4651 and the second sealing member 4652 are used for sealing the guide rod 411 which reciprocates.
In this embodiment, a seal chamber 46112 is fixedly disposed on an end surface of the first sleeve 4611, and the first seal ring 463 is installed in the seal chamber 46112.
The guide rod 411 sequentially penetrates through the through cavity 4622, the first cavity 46111 and the second cavity 46121 and extends into the breaker box 44, namely, the input end of the guide rod 411 is located in the breaker box 44, the output end of the guide rod 411 is located in the breaker pole 41, the sealing sleeve 464 is installed in the first cavity 46111, the sealing sleeve 464 is sleeved on the outer surface of the guide rod 411, the inner side of the sealing sleeve 464 is fixedly provided with an inward concave first cavity 4641, the first sealing element 4651 is installed in the first cavity 4641, the first sealing element 4651 is sleeved on the outer surface of the guide rod 411, the outer side of the sealing sleeve 464 is fixedly provided with an inward concave second cavity 4642, and the second sealing element 4652 is installed in the second cavity 4642; this embodiment ensures a real-time sealing state during the movement of the guide bar 411 by designing a double seal in the moving direction of the guide bar 411.
The guide assembly comprises a circuit breaker guide sleeve 466, the circuit breaker guide sleeve 466 is fixedly arranged in the second cavity 46121, the circuit breaker guide sleeve 466 is sleeved on the guide rod 411, and the circuit breaker guide sleeve 466 guides the movement of the guide rod 411 to prevent the guide rod 411 from deviating in the movement process.
Compared with the prior art, the dynamic sealing device 46 of the present embodiment has a simpler structure, high sealing efficiency, and reduced cost.
In order to prevent the central axis of the guide rod 411 and the central axis of the dynamic sealing device 46 from deviating after the guide rod 411 is used for a long time, and further affect the sealing and transmission efficiency, the dynamic sealing device 46 further comprises a fine adjustment mechanism which is adjusted through the fine adjustment mechanism to ensure the sealing and transmission efficiency, the fine adjustment mechanism comprises a cover plate installation hole 4621 fixedly arranged on the shaft sleeve cover plate 462 and a shaft sleeve installation hole 46113 fixedly arranged on the first shaft sleeve 4611, the cover plate installation hole 4621 and the shaft sleeve installation hole 46113 are in one-to-one correspondence, the cover plate installation hole 4621 is larger than the shaft sleeve installation hole 46113, the diameter of the penetrating cavity 4622 is larger than that of the guide rod 411, a gap exists between the cover plate installation hole 4621 and the shaft sleeve installation hole 46113, and the offset of the guide rod 411 is adjusted through the position of the penetrating cavity 4622, so that the guide rod 411 is ensured to keep the sealing state and the transmission efficiency after the guide rod 411 is used for a long time.
The dynamic seal 46 can be used alone in existing inflatable cabinets.
In other embodiments, the plurality of sets of sealing baffles 213 may be integrally formed.
It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Claims (9)

1. A dynamic sealing device for gas insulation is characterized in that: the guide rod sealing device comprises a dynamic sealing shaft sleeve, a shaft sleeve cover plate and a fine adjustment mechanism, wherein the dynamic sealing shaft sleeve comprises a sealing assembly and a guide assembly, the sealing assembly is used for sealing a guide rod of the vacuum circuit breaker, the guide assembly is used for guiding the guide rod, and the fine adjustment mechanism adjusts the position of the guide rod.
2. A dynamic seal for gas insulation as claimed in claim 1, wherein: the shaft sleeve cover plate is fixedly connected with the dynamic seal shaft sleeve, the shaft sleeve cover plate is fixedly provided with a through cavity, the dynamic seal shaft sleeve is composed of a first shaft sleeve and a second shaft sleeve, a first cavity is fixedly arranged in the first shaft sleeve, a second cavity is fixedly arranged in the second shaft sleeve, and the first cavity and the second cavity are coaxially arranged.
3. A dynamic seal for gas insulation according to claim 2, wherein: install at the circuit breaker mounting panel, the mounting hole has set firmly on the circuit breaker mounting panel, and the mounting hole is joined in marriage with the second shaft cover, and the mounting hole is inserted to the second shaft cover, and first axle sleeve terminal surface offsets with the circuit breaker mounting panel, and the circuit breaker mounting panel passes through fastening screw fixed connection with first axle sleeve.
4. A dynamic seal for gas insulation according to claim 2, wherein: the sealing assembly comprises a first sealing ring, a sealing sleeve, a first sealing piece and a second sealing piece, the first sealing ring is used for sealing between the dynamic sealing device and the circuit breaker mounting plate, and the sealing sleeve, the first sealing piece and the second sealing piece are used for sealing the guide rod which does reciprocating motion.
5. A dynamic seal for gas insulation according to claim 4, wherein: the end face of the first shaft sleeve is fixedly provided with a sealing cavity, and the first sealing ring is arranged in the sealing cavity.
6. A dynamic seal for gas insulation according to claim 4, wherein: the guide rod runs through in proper order and runs through chamber, first cavity and second cavity, and the input of guide rod is located the circuit breaker box, and the output of guide rod is located the circuit breaker utmost point post, and the seal cover is installed in first cavity, and the seal cover is established at the guide rod surface, and the seal cover inboard has set firmly the first cavity of indent type, and first sealing member is installed at first cavity, and first sealing member cover is established at the guide rod surface, and the seal cover outside has set firmly the second cavity of indent type, and the second sealing member is installed at the second cavity.
7. A dynamic seal for gas insulation according to claim 2, wherein: the guide assembly comprises a circuit breaker guide sleeve, the circuit breaker guide sleeve is fixedly arranged in the second cavity, the circuit breaker guide sleeve is sleeved on the guide rod, and the circuit breaker guide sleeve guides the movement of the guide rod.
8. A dynamic seal for gas insulation according to claim 2, wherein: the fine adjustment mechanism comprises a cover plate mounting hole fixedly arranged on the cover plate of the shaft sleeve and a shaft sleeve mounting hole fixedly arranged on the first shaft sleeve, the cover plate mounting hole is larger than the shaft sleeve mounting hole, the diameter of the penetrating cavity is larger than that of the guide rod, a gap exists between the cover plate mounting hole and the guide rod, and the offset of the guide rod is adjusted by adjusting the position of the guide rod in the penetrating cavity.
9. A dynamic seal for gas insulation according to claim 8, wherein: the cover plate mounting holes correspond to the shaft sleeve mounting holes one to one.
CN202121610606.9U 2021-05-27 2021-07-15 Dynamic sealing device for gas insulation Active CN215934279U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110586497X 2021-05-27
CN202110586497 2021-05-27

Publications (1)

Publication Number Publication Date
CN215934279U true CN215934279U (en) 2022-03-01

Family

ID=78103271

Family Applications (12)

Application Number Title Priority Date Filing Date
CN202110801499.6A Pending CN113571372A (en) 2021-05-27 2021-07-15 Three-station mechanism for gas insulation
CN202121611904.XU Active CN215644280U (en) 2021-05-27 2021-07-15 Vacuum circuit breaker for gas insulation
CN202121610336.1U Active CN215934285U (en) 2021-05-27 2021-07-15 Sealing device for gas insulation
CN202110801202.6A Pending CN113555252A (en) 2021-05-27 2021-07-15 Vacuum circuit breaker for gas insulation
CN202121611386.1U Active CN215644169U (en) 2021-05-27 2021-07-15 Auxiliary device for electric auxiliary switch
CN202110802782.0A Pending CN113571375A (en) 2021-05-27 2021-07-15 Operating device of gas insulation switch cabinet
CN202121612976.6U Active CN215934280U (en) 2021-05-27 2021-07-15 Gas insulation switch cabinet
CN202110802871.5A Pending CN113572075A (en) 2021-05-27 2021-07-15 Gas insulation switch cabinet
CN202121610606.9U Active CN215934279U (en) 2021-05-27 2021-07-15 Dynamic sealing device for gas insulation
CN202121612400.XU Active CN215933461U (en) 2021-05-27 2021-07-15 Three-station mechanism for gas insulation
CN202121612866.XU Active CN215933476U (en) 2021-05-27 2021-07-15 Operating device of gas insulation switch cabinet
CN202121609896.5U Active CN215933472U (en) 2021-05-27 2021-07-15 Interlocking device for preventing live-wire operation of three-position switch

Family Applications Before (8)

Application Number Title Priority Date Filing Date
CN202110801499.6A Pending CN113571372A (en) 2021-05-27 2021-07-15 Three-station mechanism for gas insulation
CN202121611904.XU Active CN215644280U (en) 2021-05-27 2021-07-15 Vacuum circuit breaker for gas insulation
CN202121610336.1U Active CN215934285U (en) 2021-05-27 2021-07-15 Sealing device for gas insulation
CN202110801202.6A Pending CN113555252A (en) 2021-05-27 2021-07-15 Vacuum circuit breaker for gas insulation
CN202121611386.1U Active CN215644169U (en) 2021-05-27 2021-07-15 Auxiliary device for electric auxiliary switch
CN202110802782.0A Pending CN113571375A (en) 2021-05-27 2021-07-15 Operating device of gas insulation switch cabinet
CN202121612976.6U Active CN215934280U (en) 2021-05-27 2021-07-15 Gas insulation switch cabinet
CN202110802871.5A Pending CN113572075A (en) 2021-05-27 2021-07-15 Gas insulation switch cabinet

Family Applications After (3)

Application Number Title Priority Date Filing Date
CN202121612400.XU Active CN215933461U (en) 2021-05-27 2021-07-15 Three-station mechanism for gas insulation
CN202121612866.XU Active CN215933476U (en) 2021-05-27 2021-07-15 Operating device of gas insulation switch cabinet
CN202121609896.5U Active CN215933472U (en) 2021-05-27 2021-07-15 Interlocking device for preventing live-wire operation of three-position switch

Country Status (1)

Country Link
CN (12) CN113571372A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115837981A (en) * 2023-02-16 2023-03-24 中国空气动力研究与发展中心空天技术研究所 Waterproof sealed cabin for cross-medium aircraft

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114420476B (en) * 2021-12-21 2024-07-12 河南平高通用电气有限公司 Outdoor three-station switch operating mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115837981A (en) * 2023-02-16 2023-03-24 中国空气动力研究与发展中心空天技术研究所 Waterproof sealed cabin for cross-medium aircraft

Also Published As

Publication number Publication date
CN215934285U (en) 2022-03-01
CN215933472U (en) 2022-03-01
CN215933461U (en) 2022-03-01
CN113572075A (en) 2021-10-29
CN113555252A (en) 2021-10-26
CN215933476U (en) 2022-03-01
CN113571372A (en) 2021-10-29
CN215934280U (en) 2022-03-01
CN113571375A (en) 2021-10-29
CN215644280U (en) 2022-01-25
CN215644169U (en) 2022-01-25

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